Malachi 2:6-10

True instruction was in his mouth and injustice was not found on his lips; he walked with Me in peace and justice, and he turned many back from wrongdoing.

For the lips of a priest should maintain knowledge, and people should seek instruction from his mouth; for he is the messenger of the Lord of armies.

But as for you, you have turned aside from the way; you have caused many to stumble by the instruction; you have ruined the covenant of Levi,” says the Lord of armies.

“So I also have made you despised and of low reputation in the view of all the people, since you are not keeping My ways but are showing partiality in the instruction.” Sin in the Family

Do we not all have one Father? Is it not one God who has created us? Why do we deal treacherously, each against his brother so as to profane the covenant of our fathers?